/* ========================================
   CyC - Charlas y Coloquios
   Corporate Website Styles
   ======================================== */

:root {
  --color-primary: #2B74C0;
  --color-primary-light: #4A94E0;
  --color-primary-dark: #1A4F8C;
  --color-accent: #F28C0A;
  --color-accent-light: #FFB340;
  --color-dark: #0D1B2A;
  --color-dark-soft: #152238;
  --color-gray-900: #1F2937;
  --color-gray-700: #374151;
  --color-gray-500: #6B7280;
  --color-gray-300: #D1D5DB;
  --color-gray-100: #EDF2F7;
  --color-white: #FFFFFF;

  --rainbow-1: #E40303;
  --rainbow-2: #FF8C00;
  --rainbow-3: #FFED00;
  --rainbow-4: #008026;
  --rainbow-5: #004DFF;
  --rainbow-6: #750787;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 40px rgba(37, 104, 176, 0.25);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- RESET ---- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-gray-700);
  background: var(--color-white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ---- CONTAINER ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}

.btn--outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
}

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  background: var(--color-white);
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
  transition: var(--transition);
}

.nav--scrolled {
  background: var(--color-white);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.nav__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo-img {
  max-height: 60px;
  width: auto;
  display: block;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  color: var(--color-gray-700);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
  background: rgba(37, 104, 176, 0.06);
}

.nav__link--cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
}

.nav__link--cta:hover {
  background: var(--color-primary-dark) !important;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-gray-700);
  border-radius: 2px;
  transition: var(--transition);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 40%, var(--color-primary-dark) 100%);
}

#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__content {
  position: relative;
  text-align: center;
  color: var(--color-white);
  padding: 0 24px;
}

.hero__pre {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 16px;
}

.hero__brand {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.2;
  padding-bottom: 0.1em;
  background: linear-gradient(135deg, var(--color-white) 30%, var(--color-primary-light) 60%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  display: block;
  font-family: var(--font-sans);
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 8px;
  opacity: 0.85;
}

.hero__tagline {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  max-width: 600px;
  margin: 24px auto 0;
  opacity: 0.6;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---- SECTION HEADER ---- */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header--left {
  text-align: left;
}

.section-header__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section-header__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.15;
}

.section-header__desc {
  font-size: 1.1rem;
  color: var(--color-gray-500);
  max-width: 600px;
  margin: 16px auto 0;
}

/* ---- SERVICIOS ---- */
.servicios {
  padding: 120px 0;
  background: var(--color-gray-100);
}

/* Alternancia de fondos: hero(oscuro) → servicios(gris) → charlas(blanco) → team(gris) → diferencial(blanco) → nosotros(gris) → contacto(blanco) → footer(gris) */

.servicios__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.servicio-card {
  display: block;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  transition: var(--transition);
  border: 1px solid var(--color-gray-300);
  position: relative;
  overflow: hidden;
}

.servicio-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  transition: var(--transition);
}

.servicio-card--charlas::before {
  background: linear-gradient(90deg, var(--rainbow-1), var(--rainbow-2), var(--rainbow-3), var(--rainbow-4), var(--rainbow-5), var(--rainbow-6));
}

.servicio-card--team::before {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.servicio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.servicio-card__icon {
  width: 64px;
  height: 64px;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.servicio-card__title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.servicio-card__desc {
  color: var(--color-gray-500);
  margin-bottom: 24px;
  line-height: 1.7;
}

.servicio-card__cta {
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition);
}

.servicio-card:hover .servicio-card__cta {
  letter-spacing: 0.05em;
}

/* ---- SPLIT LAYOUT ---- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.split--reverse .split__visual {
  order: -1;
}

/* ---- CHARLAS ---- */
.charlas {
  padding: 120px 0;
  background: var(--color-white);
  position: relative;
  overflow: hidden;
}

.pride-stripes {
  position: absolute;
  inset: 0;
  width: 100vw;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0.13;
  pointer-events: none;
  z-index: 0;
}

.charlas > .container {
  position: relative;
  z-index: 1;
}

.charlas p {
  color: var(--color-gray-500);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

/* ---- FEATURE LIST ---- */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.feature-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 20px;
  border-left: 3px solid var(--color-primary-light);
}

.feature-list li strong {
  color: var(--color-dark);
  font-size: 1rem;
}

.feature-list li span {
  color: var(--color-gray-500);
  font-size: 0.9rem;
}

/* ---- VISUAL BLOCKS ---- */
.visual-block {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 360px;
  display: flex;
  align-items: flex-end;
}

.visual-block--charlas {
  background: linear-gradient(135deg, var(--color-dark), var(--color-primary-dark));
}

.visual-block--team {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-dark-soft));
}

.visual-block--about {
  background: linear-gradient(135deg, var(--color-dark-soft), var(--color-primary-dark));
}

.visual-block__accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--rainbow-1), var(--rainbow-2), var(--rainbow-3), var(--rainbow-4), var(--rainbow-5), var(--rainbow-6));
}

.visual-block__content {
  position: relative;
  padding: 40px;
  color: var(--color-white);
  width: 100%;
}

.visual-block__big {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.visual-block__content p {
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  line-height: 1.7;
}

.visual-block__content blockquote {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.5;
  color: rgba(255,255,255,0.9);
}

/* ---- STATS ---- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.stat {
  text-align: center;
}

.stat__number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat__suffix {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat__label {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

/* ---- TEAM BUILDING ---- */
.teambuilding {
  padding: 120px 0;
  background: var(--color-gray-100);
}

.teambuilding p {
  color: var(--color-gray-500);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

/* ---- DIFERENCIAL ---- */
.diferencial {
  padding: 120px 0;
  background: var(--color-white);
}

.diferencial .section-header__label {
  color: var(--color-accent);
}

.diferencial .section-header__title {
  color: var(--color-dark);
}

.diferencial__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.dif-card {
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-300);
  background: var(--color-white);
  transition: var(--transition);
}

.dif-card:hover {
  border-color: var(--color-primary-light);
  background: var(--color-gray-100);
  box-shadow: var(--shadow-md);
}

.dif-card__number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.dif-card h3 {
  color: var(--color-dark);
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.dif-card p {
  color: var(--color-gray-500);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---- FIESTAS ---- */
.fiestas {
  padding: 120px 0;
  background: var(--color-accent);
}

.fiestas .section-header__label {
  color: var(--color-white);
}

.fiestas .section-header__title {
  color: var(--color-white);
}

.fiestas p {
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.fiestas .feature-list--fiestas li {
  border-left-color: var(--color-white);
}

.fiestas .feature-list--fiestas li strong {
  color: var(--color-white);
}

.fiestas .feature-list--fiestas li span {
  color: rgba(255,255,255,0.75);
}

.btn--dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: var(--transition);
  background: var(--color-dark);
  color: var(--color-white);
  border: 2px solid var(--color-dark);
}

.btn--dark:hover {
  background: var(--color-white);
  color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.visual-block--fiestas {
  background: rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.fiestas-icons {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
  font-size: 3rem;
}

.visual-block--fiestas p {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
}

/* ---- NOSOTROS ---- */
.nosotros {
  padding: 120px 0;
  background: var(--color-gray-100);
}

.nosotros p {
  color: var(--color-gray-500);
  margin-bottom: 16px;
  font-size: 1.05rem;
}

/* ---- CONTACTO ---- */
.contacto {
  padding: 120px 0;
  background: var(--color-primary);
}

.contacto .section-header__label {
  color: var(--color-accent-light);
}

.contacto .section-header__title {
  color: var(--color-white);
}

.contacto .section-header__desc {
  color: rgba(255,255,255,0.75);
}

.contacto__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* ---- FORM ---- */
.form {
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form__group {
  margin-bottom: 20px;
}

.form__group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.form__group input,
.form__group select,
.form__group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-dark);
  transition: var(--transition);
  background: var(--color-white);
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(37, 104, 176, 0.1);
}

.form__group textarea {
  resize: vertical;
}

/* ---- CONTACTO INFO ---- */
.contacto__info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contacto__info-card {
  background: rgba(255,255,255,0.15);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
}

.contacto__info-card h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-light);
  margin-bottom: 4px;
}

.contacto__info-card p {
  font-size: 1.05rem;
  color: var(--color-white);
  font-weight: 500;
}

.contacto__info-card a {
  color: var(--color-white);
  transition: var(--transition);
}

.contacto__info-card a:hover {
  color: var(--color-accent-light);
}

/* ---- FOOTER ---- */
.footer {
  background: var(--color-gray-100);
  padding: 60px 0 0;
  color: var(--color-gray-500);
  border-top: 1px solid var(--color-gray-300);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-gray-300);
  align-items: start;
}

.footer__logo-img {
  max-height: 50px;
  width: auto;
  display: block;
}

.footer__brand p {
  margin-top: 12px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-gray-500);
}

.footer__links h4 {
  color: var(--color-dark);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.footer__links a {
  display: block;
  font-size: 0.9rem;
  padding: 4px 0;
  color: var(--color-gray-500);
  transition: var(--transition);
}

.footer__links a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

.footer__legal {
  display: flex;
  gap: 24px;
}

.footer__legal a {
  color: var(--color-gray-500);
  transition: var(--transition);
}

.footer__legal a:hover {
  color: var(--color-primary);
}

/* ---- ANIMATIONS ---- */
.animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate.visible {
  opacity: 1;
  transform: translateY(0);
}

.dif-card.animate:nth-child(2) { transition-delay: 0.1s; }
.dif-card.animate:nth-child(3) { transition-delay: 0.2s; }
.dif-card.animate:nth-child(4) { transition-delay: 0.3s; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .diferencial__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav__toggle {
    display: flex;
  }

  .nav__toggle {
    position: relative;
    z-index: 1002;
  }

  .nav__toggle.active span {
    background: var(--color-white);
  }

  .nav__link {
    color: rgba(255,255,255,0.85);
  }

  .nav__link:hover,
  .nav__link.active {
    color: var(--color-white);
    background: rgba(255,255,255,0.1);
  }

  .nav__link--cta {
    padding: 10px 20px;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-dark);
    flex-direction: column;
    justify-content: flex-start;
    gap: 20px;
    padding: 80px 24px 24px;
    transition: var(--transition);
    z-index: 1001;
  }

  .nav__menu.active {
    right: 0;
  }

  .nav__overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
  }

  .nav__overlay.active {
    display: block;
  }

  .nav__link {
    font-size: 1.1rem;
    padding: 12px 20px;
  }

  .servicios__grid {
    grid-template-columns: 1fr;
  }

  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split--reverse .split__visual {
    order: 0;
  }

  .diferencial__grid {
    grid-template-columns: 1fr;
  }

  .contacto__cards {
    grid-template-columns: 1fr;
  }

  .form__row {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .charlas,
  .teambuilding,
  .nosotros,
  .servicios,
  .diferencial,
  .contacto {
    padding: 80px 0;
  }
}

@media (max-width: 480px) {
  .servicio-card {
    padding: 32px 24px;
  }

  .form {
    padding: 24px;
  }
}